Dynamic Crossflow Filtration Machine BoCross(R) Filter
Dynamic cross-flow filtration system capable of high concentration, filtration, and cleaning operations of submicron to nanoparticle sizes, as well as wet classification of single micron particles.
The "BoCross(R) Filter," a cross-flow filtration machine characterized by its unique mechanism that includes stirring blades near the filtration surface, suppresses cake formation on the filtration surface. By using MF and UF membranes as the filtration media, it enables high-speed filtration of submicron to nano-sized particles. The stirring blades forcibly create a cross-flow, allowing for high flux even in high-concentration slurries resembling a paste.
basic information
<Principle> This is a dynamic cross-flow filtration machine capable of high concentration, filtration, and cleaning operations for nanoparticles. It features two types of filters: membrane filtration (BoCross Dynamic) and metal mesh (BoCross MicroScreen), which can be selected according to the purpose. By generating cross-flow (shear stress) of the slurry through an internal stirring mechanism, it maintains a high filtration rate and achieves higher concentration than conventional cross-flow filtration machines. It enables "filtration and high concentration of nanoparticle slurries," "filtration of high-viscosity slurries," "recovery of completely clear filtrate," and "desalting and cleaning from slurry mother liquor." <Features> - Capable of handling high-concentration slurries and high-viscosity slurries - Enables high concentration and advanced cleaning operations for submicron and nanoparticle slurries - Produces clear filtrate without solid particles - Automation of dilution cleaning reduces workload and significantly decreases cleaning water and wastewater - Removal of coarse particles in the micron size range through wet classification using metal filter media - Maximum filtration pressure: 0.6 MPaG - Maximum applicable temperature: 100°C (with proven performance of 200°C for special applications) - Applicable for both continuous and batch processing - Completely sealed operation
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Applications/Examples of results
Pigments, paints, pharmaceuticals, metal nanoparticles, titanium dioxide, battery materials, ceramic materials, polymer dispersions, cosmetic ingredients, and others.
Detailed information
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It features high-speed filtration of submicron to nanoparticle sizes and high-concentration concentration. Concentration up to a paste-like consistency is possible.
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Cleaning of particles through dilution washing (removal of soluble substances) and solvent replacement is possible. Various sensors enable automatic detection of the cleaning endpoint, supporting autonomous operation.
Line up（1）
| Model number | overview |
|---|---|
| We have a range from laboratory use (filter area 0.013 m²) to production use (8 m²). |
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Tsukishima Kikai Co., Ltd. has been providing industrial machinery manufacturing and plant engineering since its establishment in 1905. In April 2023, it was reorganized as a business company under Tsukishima Holdings Co., Ltd. due to a group restructuring. <Tsukishima Holdings Co., Ltd. Consolidated Information> Securities Code: 6332, Listed on the Tokyo Stock Exchange Prime Market Founded: August 1905 Capital: 6.6 billion yen Number of Employees: 3,575 (as of March 31, 2025) 【Unit Operation Equipment】 - We have specialists well-versed in core technologies centered on crystallization, filtration, drying, weighing, and mixing, and we offer a rich lineup of products. - By manufacturing key and large equipment in our own factory, we provide high-quality machinery. - Our R&D center holds numerous test machines, allowing for tests that combine multiple operations. 【Process Engineering】 - We have numerous EPC achievements, primarily in chemical, food, and battery manufacturing plants, both domestically and internationally. - Through collaboration with overseas group company bases, we provide extensive support to our customers. - Leveraging our core technology experience and knowledge, we offer optimal process proposals that combine equipment from other companies as well.